Municipal · Pennsylvania · EIA 3329
Borough of Chambersburg
Municipal · Pennsylvania · 12K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 28 minutes/customer.
Reliability verdict
Borough of Chambersburg shows above-average chronic reliability in 2023: 9 minutes SAIDI excluding major events (28 minutes including them) across 12K customers.
- 28 min
- SAIDI 2023
- 0.35
- SAIFI 2023
- 9 min
- SAIDI ex-MED
- 12K
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: short interruption minutes vs the 911 utility cohort (≤96 min tercile cut).
What short-outage Borough of Chambersburg filings show
Borough of Chambersburg is a municipally-owned utility operating in Pennsylvania under EIA identifier 3329. It reports service to approximately 11,639 customer accounts and generated about $0.03 billion in annual electric revenue, with a service footprint spanning 2 ZIP codes. As a municipal utility, it is typically governed by a local board or city council and is exempt from federal income tax.
In 2023, the average Borough of Chambersburg customer experienced 27.9 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. Over the same period, SAIFI (outage events per customer) was 0.35, putting the typical customer at roughly 0 distinct interruptions that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 8.9 minutes, and the spread against the headline 27.9 indicates how much weather, versus routine infrastructure, drove the outage total.
Borough of Chambersburg has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. Over that span, SAIDI rose from 14.1 to 27.9 minutes, possibly reflecting tougher weather years or grid upgrades that have not caught up yet.
Based on this utility's own EIA Form 861 reliability record -- baseline (major-event- excluded) outage duration, total outage duration, and outage frequency -- each benchmarked against every reporting utility nationwide. Not a measure of electricity rates or customer service, which this portal does not track.
28 outage minutes per customer annually
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Borough of Chambersburg from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Borough of Chambersburg SAIDI trend
Borough of Chambersburg vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
28 Among the lowest fewer outage minutes than 91% of 911 utilities
Utilities nationwide, banded by latest reported SAIDI (minutes)
Each bar is a band; taller bars hold more utilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source U.S. EIA Form 861 reliability filings · August 2026
Price vs. reliability
Where Borough of Chambersburg sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Borough of Chambersburg charges more per customer than 50% of them, and is more reliable (lower SAIDI) than 93% of them, placing it in the quadrant where it pays more and is more reliable. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $2,534/year · Latest SAIDI: 27.9 minutes/year.
SAIDI 2023 breakdown: 27.9 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 14.1 | 14.1 | 0.351 | 11,187 |
| 2021 | 27.3 | 17.1 | 0.270 | 11,187 |
| 2022 | 7.2 | 7.2 | 0.070 | 11,187 |
| 2023 | 27.9 | 8.9 | 0.350 | 11,187 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Borough of Chambersburg serves 2 ZIP codes in Pennsylvania.
Frequently Asked Questions
How reliable is Borough of Chambersburg?
Borough of Chambersburg had a SAIDI of 27.9 minutes in 2023 including major weather events, but 8.9 minutes excluding them (the industry-standard measure of routine reliability, so the gap traces back to a major storm that year, not a chronic issue). Excluding major storm impacts, this beats the national average, a sign of above-average reliability.
What type of utility is Borough of Chambersburg?
Borough of Chambersburg is classified as a Municipal serving Pennsylvania.
How many customers does Borough of Chambersburg serve?
Borough of Chambersburg serves approximately 11,639 customers in Pennsylvania.
How has Borough of Chambersburg's reliability changed over time?
Borough of Chambersburg has 4 years of reliability data (2020-2023). SAIDI has held roughly steady across these years. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- Municipal
- State
- Pennsylvania
- Customers
- 11,639
- Annual Revenue
- $0.03B
- EIA ID
- 3329
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Borough of Chambersburg. Same-state SAIDI neighbors stay in Read-with below; these neighborhoods are nearest other-state utilities with at least 10,000 reported customers.
Similar customer count
Nearest utilities by Form 861 customers (12K here), outside Pennsylvania.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (27.9 here), outside Pennsylvania, excluding the customer-peer set.
Source: U.S. Energy Information Administration Form 861 annual electric power industry survey · ZIP service territory: OpenEI. Disclaimer: informational only, not professional advice. See full disclaimer · methodology.